Rotary lifting power assisting device and railway double-layer vehicle special for transporting automobiles

Abstract

The utility model discloses a rotary lifting power assisting device and a railway double-layer vehicle special for transporting automobiles, which are used for assisting in lifting an upper-layer end bottom frame and comprise a spring balancer, a rotating shaft, a rotating shaft and a rotating shaft, and the connecting mounting base is used for being fixed to the upper-layer end underframe, and the rigging of the spring balancer is connected to the connecting mounting base. When the upper-layer end underframe needs to be lifted, an operator can apply upward thrust to the upper-layer end underframe, the upper-layer end underframe can ascend under the assistance effect of the spring balancer, and when the upper-layer end underframe ascends to the needed position, the operator applies downward tension to stop rotation of the upper-layer end underframe, and then the upper-layer end underframe is fixed. When the upper-layer end underframe needs to descend, an operator can continuously apply downward pulling force. The device is simple to operate and does not need an external power source. Operators only need to apply upward or downward initial force, lifting of the upper-layer end bottom frame can be achieved, the response speed is high, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of special vehicles for railway double-deck transportation of automobiles, and more specifically, to a rotary lifting power-assisting device and a special vehicle for railway double-deck transportation of automobiles. Background Art

[0002] With economic development and rising living standards, cars have become increasingly commonplace in every household. The concentration of automobile manufacturing bases and the fragmentation of the consumer market have created a huge demand for automobile logistics. Railway transportation, which can better protect the quality of the vehicles it carries, has seen a year-on-year increase in freight volume.

[0003] Railway double-decker transport vehicles have two levels of loading space, the upper chassis and the lower chassis. Usually the upper chassis is divided into three sections, namely the upper middle chassis and the upper end chassis located at both ends of the upper middle chassis. The upper end chassis are hinged to the upper middle chassis through rotating supports, so that the upper end chassis can be adjusted in angle.

[0004] Railway double-decker vehicles typically lack electric or hydraulic drive systems, making it difficult to use them to rotate the upper end chassis. The upper end chassis typically weighs over one ton, and relying on manual operation to switch positions would be labor-intensive for the operator.

[0005] Therefore, how to reduce the lifting resistance of the upper end chassis and reduce the labor intensity of operators is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a rotary lifting assist device to reduce the lifting resistance of the upper end chassis and reduce the labor intensity of the operator;

[0007] Another object of the present invention is to provide a special vehicle for railway double-deck transportation of automobiles having the above-mentioned rotating lifting assist device.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A rotary lifting assist device for assisting in lifting an upper end chassis, comprising:

[0010] Spring balancer, used to be fixed on the side wall of the vehicle body;

[0011] The connecting mounting seat is used to be fixed on the upper end chassis, and the rigging of the spring balancer is connected to the connecting mounting seat.

[0012] Optionally, the above-mentioned rotary lifting assist device further includes a rotation adjuster, wherein the rotation adjuster is rotatably connected to the connection mounting seat along a first rotation axis, and the rigging is connected to the rotation adjuster.

[0013] Optionally, in the above-mentioned rotary lift assist device, a rotary joint is provided at the end of the rigging, the rotary joint comprising a first rotating body and a second rotating body that rotate relative to each other along a second rotation axis, the first rotating body being connected to the end of the rigging, and the second rotating body being connected to the rotation adjuster;

[0014] The first rotation axis and the second rotation axis are perpendicular.

[0015] Optionally, in the above-mentioned rotary lift assist device, the rotary adjuster has a hinged lug plate, and the second rotary body is rotatably connected to the hinged lug plate along a third rotation axis;

[0016] The first rotation axis, the second rotation axis, and the third rotation axis are perpendicular to each other.

[0017] Optionally, in the above-mentioned rotary lift assist device, the connection mounting seat is provided with a plurality of hinge holes spaced apart along the height direction;

[0018] The rotation adjuster is hinged to one of the hinge holes via a hinge shaft, and the axis of the hinge shaft is the first rotation axis.

[0019] Optionally, in the above-mentioned rotary lifting assist device, a chassis connecting seat is provided at the bottom of the upper end chassis, and the connecting mounting seat is used to be fixed on the chassis connecting seat.

[0020] When in use, the rotary lifting assist device provided by the present invention involves fixing a spring balancer to the side wall of a railway double-deck transport vehicle, fixing a connecting mounting bracket to the upper end chassis, and connecting the spring balancer's rigging to the connecting mounting bracket. The spring balancer utilizes the tension of its spring to balance the weight of the upper end chassis, saving the operator effort during operation. The output force and number of spring balancers used can be selected based on the weight to be balanced. When the upper end chassis needs to be raised from its working position, the operator applies an upward thrust to the upper end chassis, which then rises with the assistance of the spring balancer. When the upper end chassis rises to the desired position, the operator applies a downward pulling force to stop the chassis from rotating, and then secures the upper end chassis. When the upper end chassis needs to be lowered, the operator simply applies a downward pulling force. The present utility model is simple to operate and does not require an external power source. The operator only needs to apply an initial upward or downward force to raise or lower the upper end chassis, resulting in a fast response speed and energy-saving and environmentally friendly operation.

[0021] A special vehicle for railway double-deck transportation of automobiles, comprising:

[0022] body side walls;

[0023] An upper chassis, disposed between the two vehicle body side walls, and comprising an upper intermediate chassis and an upper end chassis hinged to the upper intermediate chassis via a rotating support;

[0024] The rotary lifting assist device is a rotary lifting assist device as described in any of the above items, wherein at least one rotary lifting assist device is provided on both sides of the upper end chassis, the spring balancer is fixed to the side wall of the vehicle body, and the connecting mounting seat is fixed to the upper end chassis.

[0025] Optionally, in the above-mentioned railway double-deck transport vehicle, a handle is provided at one end of the upper end chassis away from the rotating support.

[0026] Optionally, in the above-mentioned railway double-deck transport vehicle, the rotation and lifting assist devices on both sides of the upper end chassis are symmetrically arranged along the upper end chassis.

[0027] Optionally, in the above-mentioned railway double-deck transport vehicle, the number of the rotating lifting assist devices on both sides of the upper end chassis is the same, and both are multiple.

[0028] The special vehicle for railway double-deck transportation of automobiles provided by the present invention has all the technical effects of the above-mentioned rotary lifting assisting device due to its inclusion, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the local structure of the rotary lifting assist device in the prior art when it is used;

[0031] Figure 2 This is a partial enlarged view of the application of the rotary lifting assist device in the prior art;

[0032] Figure 3 This is a structural diagram of the upper end chassis disclosed in an embodiment of the present utility model when it is in a working position;

[0033] Figure 4This is a structural diagram of the upper end chassis disclosed in an embodiment of the present utility model when it is in a raised position;

[0034] Figure 5 This is a partial enlarged view of the rotary lifting assist device disclosed in an embodiment of the present utility model when in use;

[0035] Figure 6 This is a partial enlarged view of the connection between the rotary adjuster and the connecting mounting seat disclosed in an embodiment of the present utility model.

[0036] The meanings of the reference numerals in the figures are as follows:

[0037] 1-Upper end chassis; 2-Counterweight; 3-Wire rope; 4-Pulley block;

[0038] 100-upper end chassis; 101-rotating support; 102-chassis connecting seat;

[0039] 200 - Rotary lifting assist device; 201 - Spring balancer; 202 - Connecting mounting base; 2021 - Hinge hole; 203 - Rotation adjuster; 2031 - Hinge lug; 204 - Rotary joint; 205 - Rigging;

[0040] 300-body side wall;

[0041] 400-handle. DETAILED DESCRIPTION

[0042] The core of the utility model is to provide a rotary lifting assist device to reduce the lifting resistance of the upper end chassis and reduce the labor intensity of the operator;

[0043] Another core of the present invention is to provide a special vehicle for railway double-deck transportation of automobiles with the above-mentioned rotating lifting assist device.

[0044] The following embodiments are described with reference to the accompanying drawings. The embodiments described below do not limit the scope of the utility model as set forth in the claims. Furthermore, the entire contents of the components described in the following embodiments are not necessarily required to provide the solutions described in the claims. It should be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings. The embodiments and features of the embodiments of the present utility model may be combined with one another unless there is a conflict.

[0045] Railway double-decker vehicles typically have two levels of loading space, an upper and lower chassis. When passing through special road conditions such as tunnels, the vehicle has height restrictions, which impose certain requirements on the vehicle's height. Currently, for railway double-decker vehicles with two levels of loading space, the upper chassis cannot be designed too high, which will inevitably affect the space between the upper and lower chassis.

[0046] To meet shipping requirements, the lower chassis is typically designed with a lower center and higher ends (due to the wheelsets at each end of the vehicle, the ends cannot be designed as low as the center). Because the ends of the lower chassis cannot be lowered, there's insufficient clearance at the ends when loading vehicles onto the lower chassis. To meet these requirements, the upper chassis is divided into three sections: an upper middle chassis and upper end chassis located at each end of the upper middle chassis. The upper end chassis are hinged to the upper middle chassis via pivoting supports, allowing for adjustable angles.

[0047] When loading and unloading a car on the lower chassis, it is necessary to raise the height of the upper end chassis to increase the height space at the end of the lower chassis so that the car can pass through. After loading and unloading is completed, the height of the upper end chassis is lowered to load and unload the car on the upper chassis.

[0048] In order to assist in adjusting the angle of the upper end chassis, the following is currently commonly used on SQ6 vehicles: Figure 1 and Figure 2 The scheme shown. This rotary lift assist device utilizes the principle of a counterweight mechanism to achieve the lifting and lowering of the upper end chassis 1 (i.e., the upper end chassis 1 is lifted and lowered during rotation). The rotary lift assist device primarily comprises a wire rope 3, a pulley assembly 4, and a counterweight 2. During the lifting process, the counterweight 2 is connected to the upper end chassis 1 via the wire rope 3, providing a counterbalancing force to counteract the lifting of the upper end chassis 1. For example, when the upper end chassis 1 is pushed upward, the counterweight 2 is pulled downward by the wire rope 3, thereby reducing the force applied by the operator.

[0049] The rotary lifting assist device has the following problems:

[0050] 1. During the lifting and lowering process of the upper end chassis 1, the steel wire rope 3 is subjected to bending and stretching stress, which causes fatigue under repeated stress and leads to the breakage of the steel wire rope 3;

[0051] 2. The counterweight 2 is heavy, which increases the weight of the vehicle, and is inconsistent with the development trend of lightweight vehicle bodies;

[0052] 3. Frequent regular maintenance: The wire rope 3 needs to be lubricated and tension adjusted regularly, which increases maintenance costs;

[0053] 4. Short replacement cycle of wire rope 3: Due to the contact and friction between wire rope 3 and pulley, wear and tear caused by friction, as well as the stress of bending and stretching, wire rope 3 may break wires and strands, and wire rope 3 needs to be replaced regularly;

[0054] 5. Complex operation: In order to reduce the risk of wire rope 3 breaking, it is necessary to raise the counterweight 2 when the end chassis reaches the required position and put it in a stress-free state, which increases the operation time.

[0055] Based on this, the embodiment of the present utility model discloses a rotary lifting assist device to reduce the lifting resistance of the upper end chassis and reduce the labor intensity of the operator. Figure 3 and Figure 4 As shown, the rotary lifting assist device 200 disclosed in this embodiment is used to assist in lifting the upper end chassis 100 . The rotary lifting assist device 200 includes a spring balancer 201 and a connecting mounting seat 202 .

[0056] The spring balancer 201 is fixed to the vehicle side wall 300. The spring balancer 201 utilizes the tension of its spring to balance the weight of the upper end chassis 100, saving the operator effort during operation. This embodiment can utilize a spring balancer commonly used in the prior art, and its specific structure is not limited or elaborated upon.

[0057] The connecting mounting base 202 is used to be fixed to the upper end chassis 100, and the rigging 205 of the spring balancer 201 is connected to the connecting mounting base 202. In this embodiment, by providing the connecting mounting base 202 on the upper end chassis 100, it is convenient to connect with the rigging 205 of the spring balancer 201, so that the spring force of the spring balancer 201 can be applied to the upper end chassis 100 to provide assistance for lifting the upper end chassis 100. It should be noted that the lifting and lowering of the upper end base frame 100 refer to the rotation process of the upper end base frame 100 around the rotating support 101; when the upper end base frame 100 rotates upward around the rotating support 101, the upper end base frame 100, except for the position where it is connected to the rotating support 101, the rest of the upper end base frame 100 will gradually rise; when the upper end base frame 100 rotates downward around the rotating support 101, the upper end base frame 100, except for the position where it is connected to the rotating support 101, the rest of the upper end base frame 100 will gradually descend.

[0058] In summary, when the rotary lift assist device 200 disclosed in the embodiment of the present invention is in use, the spring balancer 201 is fixed to the side wall 300 of the railway double-deck transport vehicle, the connecting mounting base 202 is fixed to the upper end chassis 100, and the rigging of the spring balancer 201 is connected to the connecting mounting base 202. The output force and number of spring balancers 201 used can be selected according to the weight to be balanced. When the upper end chassis 100 is in its working position (typically a horizontal position or a position close to horizontal at a preset angle from horizontal) and needs to be raised, the operator can apply an upward thrust to the upper end chassis 100, which will then rise with the assistance of the spring balancer 201. When the upper end chassis 100 reaches the desired position, the operator applies a downward pulling force to stop its rotation and then secures the upper end chassis 100. When the upper end chassis 100 needs to be lowered, the operator simply continues to apply the downward pulling force.

[0059] The present invention is simple to operate, requiring no external power source or counterweight. The operator only needs to apply an initial upward or downward force to raise or lower the upper end chassis 100, resulting in a fast response and energy-saving and environmentally friendly operation. Furthermore, the present invention does not require a counterweight, thus not significantly increasing the vehicle's weight. Furthermore, the rigging 205 does not require a pulley block to change direction and is not subject to bending and stretching stresses, which can lead to fatigue and breakage. Furthermore, the rigging 205 does not wear out due to the need for a pulley block, requiring no regular maintenance, and has a longer replacement cycle.

[0060] Because the vehicle side wall 300 is located outside the upper end chassis 100, the spring balancer 201 is mounted on top of the vehicle side wall 300, and the connecting mounting base 202 is mounted on the upper end chassis 100, the rigging 205 of the spring balancer 201 inevitably forms an angle with the vertical direction. Furthermore, the angle between the rigging 205 and the vertical direction varies with the height of the upper end chassis 100 (referring to the height of the location where the connecting mounting base 202 is mounted). Therefore, as the upper end chassis 100 is raised or lowered, the angle between the rigging 205 and the vertical direction gradually changes.

[0061] Based on this, Figure 5 and Figure 6As shown, in a specific embodiment of the present invention, the rotary lift assist device 200 may further include a rotary adjuster 203, which is rotatably connected to the connecting mounting base 202 along a first rotation axis, and a rigging 205 is connected to the rotary adjuster 203. In this embodiment, by adding the rotary adjuster 203 and connecting the rigging 205 to the rotary adjuster 203, the rigging 205 is connected to the connecting mounting base 202 via the rotary adjuster 203. With this arrangement, when the angle between the rigging 205 and the vertical direction changes during the raising or lowering of the upper end chassis 100, the rotary adjuster 203 will swing along the first rotation axis to prevent bending at the connection between the rigging 205 and the connecting mounting base 202 during the raising or lowering of the upper end chassis 100.

[0062] Furthermore, a rotary joint 204 is provided at the end of the rigging 205. The rotary joint 204 includes a first rotating body and a second rotating body that rotate relative to each other along a second rotation axis. The first rotating body is connected to the end of the rigging 205, and the second rotating body is connected to the rotation adjuster 203. The first and second rotation axes are perpendicular to each other. That is, in this embodiment, a rotation axis is added to the rigging 205. When the angle between the rigging 205 and the vertical direction changes in two directions during the raising or lowering of the upper end chassis 100, the rotation of the rotary joint 204 and the rotation adjuster 203 can also achieve follow-up movement, thereby preventing the rigging 205 from twisting and bending.

[0063] Furthermore, the rotation adjuster 203 includes a hinged lug 2031, and the second rotating body is rotatably connected to the hinged lug 2031 along a third rotation axis. The first, second, and third rotation axes are perpendicular to each other. In other words, in this embodiment, a rotation axis is added to the rigging 205. In other words, in this embodiment, the rigging 205 can resist rotation along the first, second, and third rotation axes in three perpendicular directions. Therefore, when the upper end chassis 100 is raised or lowered, even if the angle between the rigging 205 and the vertical direction changes in any direction, the rotation of the rotary joint 204 and the rotation adjuster 203, as well as the articulation of the rotation adjuster 203 with the hinged lug 2031, can achieve follow-up movement, preventing the rigging 205 from twisting and bending. Such an arrangement can also adapt to the angle change of the rigging 205 caused by the position change of the spring balancer 201 and the upper end chassis 100, making the extension and contraction of the rigging 205 and the winding around the tower pulley of the spring balancer 201 smoother.

[0064] Specifically, the second rotation axis may be an axis colinear with the rigging 205, and the first rotation axis may be an axis parallel to the horizontal plane. Those skilled in the art will appreciate that the specific orientations of the first, second, and third rotation axes can be selected based on actual scenarios, as long as they can prevent twisting and bending as the rigging 205 lengthens and contracts.

[0065] In a specific embodiment of the present invention, the connection mounting base 202 is provided with a plurality of hinge holes 2021 spaced apart along the height direction. Figure 5 In the illustrated embodiment, the connection mounting base 202 is provided with three groups of hinge holes 2021 spaced apart along the height direction; it should be noted that the number of the hinge holes 2021 along the height direction is not limited to Figure 5 Three groups are shown, and the specific number of hinge holes 2021 can be designed in this field according to actual application scenarios.

[0066] The rotary adjuster 203 is hinged to one of the hinge holes 2021 via a hinge shaft, the axis of which serves as the first rotational axis. In this embodiment, the rotary adjuster 203 can be installed at hinge holes 2021 at different heights. The specific height of the hinge hole 2021 selected is determined by the initial output force of the spring balancer 201. This is because the initial and terminal output forces of the spring balancer 201 are unstable and differ from the output force in the middle. This is reflected in the rigging 205 of the spring balancer 201, which manifests itself as unstable force output by the spring balancer 201 when the rigging 205 is fully extended or fully retracted. Therefore, when the upper end chassis 100 swings between the raised position and the working position (typically the working position), the initial and terminal output forces should be avoided, that is, the rigging 205 should be prevented from being fully extended or fully retracted.

[0067] In this embodiment, by selecting the height of the hinge hole 2021 to which the rotation adjuster 203 is hinged through the hinge shaft, when the upper end chassis 100 is rotated to the raised position, the rigging 205 with a preset length should be kept pulled out; when the upper end chassis 100 is rotated to the working position, the rigging 205 with a preset length should be kept not pulled out.

[0068] like Figure 6 As shown, to facilitate the installation of the connecting mounting base 202, in this embodiment, a chassis connecting base 102 is provided at the bottom of the upper end chassis 100. The connecting mounting base 202 is used to be fixed to the chassis connecting base 102. Specifically, the chassis connecting base 102 can be welded to the bottom of the upper end chassis 100, and the connecting mounting base 202 is fixed to the chassis connecting base 102 by bolting or riveting. In this embodiment, the specific installation method of the chassis connecting base 102 and the connecting mounting base 202 is not limited to the welding and fastener connection methods listed above.

[0069] The embodiment of the present utility model further discloses a special vehicle for railway double-deck transportation of automobiles, which includes a vehicle body side wall 300 , an upper chassis and a rotation and lifting assist device 200 .

[0070] The upper chassis is disposed between the two vehicle side walls 300 and includes an upper intermediate chassis and an upper end chassis 100 hingedly connected to the upper intermediate chassis via a rotating support 101. The rotary lift assist device 200 is the same as that disclosed in the previous embodiment, with at least one rotary lift assist device 200 installed on each side of the upper end chassis 100. A spring balancer 201 is fixed to the vehicle side wall 300, and a connecting mounting base 202 is fixed to the upper end chassis 100.

[0071] It should be noted that the spring balancer 201 with the corresponding output force and the number of spring balancers 201 to be used can be selected according to the weight to be balanced.

[0072] Since the upper end chassis 100 needs to be pushed upward when it swings from the working position to the raised position, and correspondingly, a downward pulling force needs to be applied to the upper end chassis 100 when it swings from the raised position to the working position, as the upper end chassis 100 is gradually raised, its height becomes increasingly inconvenient for the operator to reach.

[0073] like Figure 3 As shown, in order to facilitate the operator to apply an upward push and a downward pull to the upper end chassis 100, in this embodiment, a handle 400 is provided at one end of the upper end chassis 100 away from the rotating support 101. The handle 400 extends downward from the upper end chassis 100 and is easily accessible to the operator. Even when the upper end chassis 100 is in a raised position, the operator can apply a push and a pull to the upper end chassis 100 through the handle 400.

[0074] In order to achieve the purpose of labor saving, the handle 400 should be set at the end of the upper end chassis 100, so as to obtain a larger lever arm and achieve the purpose of labor saving. In addition, two handles 400 can be provided, that is, a handle 400 is provided on both sides of the end of the upper end chassis 100, so that the operator can operate the upper end chassis 100 from either side of the upper end chassis 100.

[0075] When the upper end chassis 100 needs to be raised in the working position, the operator can grasp the handle 400 and push it upward to apply an upward thrust to the upper end chassis 100. The upper end chassis 100 will then rise with the help of the spring balancer 201. When the upper end chassis 100 rises to the required position, the operator pulls the handle 400 downward to stop the upper end chassis 100 from rotating, and then fixes the upper end chassis 100. When the upper end chassis 100 needs to be lowered, the operator grasps the handle 400 and pulls it downward until the upper end chassis 100 rotates to the working position.

[0076] In this embodiment, the lifting assist devices 200 on both sides of the upper end chassis 100 are symmetrically arranged along the upper end chassis 100. In this way, assist can be applied at the same position on both sides of the upper end chassis 100, thereby improving the stability of the upper end chassis 100 during lifting.

[0077] In addition, the number of lift assist devices 200 on both sides of the upper end chassis 100 is the same, and both are multiple. Figure 3 In the illustrated embodiment, there are two lifting assist devices 200 on both sides of the upper end chassis 100; it should be noted that the number of lifting assist devices 200 is not limited to Figure 3 The solution shown is for reference only. Those skilled in the art can design the number of lift assist devices 200 according to their needs.

[0078] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0079] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A rotary lifting assist device, characterized in that: Used to assist in lifting the upper end chassis (100), comprising: A spring balancer (201) is used for being fixed on a vehicle body side wall (300); The connecting mounting seat (202) is used to be fixed on the upper end chassis (100), and the rigging (205) of the spring balancer (201) is connected to the connecting mounting seat (202).

2. The rotary lift assist device according to claim 1, wherein: It also includes a rotation regulator (203), the rotation regulator (203) being rotatably connected to the connection mounting seat (202) along a first rotation axis, and the rigging (205) being connected to the rotation regulator (203).

3. The rotary lift assist device according to claim 2, wherein: A rotary joint (204) is provided at the end of the rigging (205), and the rotary joint (204) comprises a first rotating body and a second rotating body that rotate relative to each other along a second rotating axis, the first rotating body being connected to the end of the rigging (205), and the second rotating body being connected to the rotation regulator (203); The first rotation axis and the second rotation axis are perpendicular.

4. The rotary lift assist device according to claim 3, wherein: The rotation regulator (203) has a hinged ear plate (2031), and the second rotating body is rotatably connected to the hinged ear plate (2031) along a third rotation axis; The first rotation axis, the second rotation axis, and the third rotation axis are perpendicular to each other.

5. The rotary lift assist device according to claim 2, wherein: The connecting mounting seat (202) is provided with a plurality of hinge holes (2021) at intervals along the height direction; The rotation regulator (203) is hinged to one of the hinge holes (2021) via a hinge shaft, and the axis of the hinge shaft is the first rotation axis.

6. The rotary lift assist device according to any one of claims 1 to 5, characterized in that: A chassis connection seat (102) is provided at the bottom of the upper end chassis (100), and the connection mounting seat (202) is used to be fixed on the chassis connection seat (102).

7. A special vehicle for double-deck railway transportation, characterized in that: include: Vehicle side wall (300); An upper chassis, disposed between the two vehicle body side walls (300), and comprising an upper intermediate chassis and an upper end chassis (100) hinged to the upper intermediate chassis via a rotating support (101); The rotary lifting assist device (200) is a rotary lifting assist device (200) according to any one of claims 1 to 6, wherein at least one rotary lifting assist device (200) is provided on both sides of the upper end chassis (100), the spring balancer (201) is fixed on the vehicle body side wall (300), and the connecting mounting seat (202) is fixed on the upper end chassis (100).

8. The special vehicle for railway double-deck transportation of automobiles according to claim 7, characterized in that: A handle (400) is provided at one end of the upper end chassis (100) away from the rotating support (101).

9. The special vehicle for railway double-deck transportation of automobiles according to claim 7, characterized in that: The rotation lifting assist devices (200) on both sides of the upper end chassis (100) are symmetrically arranged along the upper end chassis (100).

10. The special vehicle for railway double-deck transportation of automobiles according to claim 7, characterized in that: The number of the rotation and lifting assist devices (200) on both sides of the upper end chassis (100) is the same, and both are multiple.

Images